jim continues our coverage from cairo, where there are new calls for protests. >> reporter: benghazi remained fairly calm today. perhaps the libyan government's quick crackdown on alleged perpetrators, four individuals have reportedly been arrested. and a manhunt is ongoing for others. the u.s. government is taking no chances. all u.s. diplomatic personnel have been evacuated to tripoli, and only emergency staff is being kept on at the embassy there. meanwhile, here in cairo, it has been another interesting day, another 24 hours of protests against the made in usa anti-islam film. last night, some very dramatic scenes near the u.s. embassy clashes between protesters throwing stones, riot police charging those protesters, firing tear gas, trying to disperse the crowd. there has not been a further breach of the u.s. embassy grounds. that is the good news. but it has remained violent. at least 224 injured, have needed treatment so far. all eyes now are turned to friday after prayers. egyptian president muhammad more zi called for protests outside all mosques tomorrow. but they are suppo